﻿// TortoiseSVN - a Windows shell extension for easy version control

// Copyright (C) 2013, 2015 - TortoiseSVN

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#pragma once
#include <string>
#include <memory>

/**
 * Loads a string from the application resources.
 */
class ResString
{
public:
	ResString (HINSTANCE hInstance, int resId)
	{
		int bufsize = 1024;
		str.clear();
		do
		{
			auto buf = std::make_unique<wchar_t[]>(bufsize);
			int ret = ::LoadString(hInstance, resId, buf.get(), bufsize);
			if (ret == (bufsize-1))
				bufsize *= 2;
			else
				str = buf.get();
		} while (str.empty());
	}
	operator TCHAR const * () const { return str.c_str(); }
	operator std::wstring () const { return str; }

private:
	std::wstring str;
};
